Datasheet

Relays for functional safety
Safety relays PNOZ X
PNOZ X2.7P
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
84
Supplementary data
The PFH value depends on the switching frequency and the load on the relay output.
If the service life graphs are not accessible, the stated PFH value can be used irrespective
of the switching frequency and the load, as the PFH value already considers the relay's
B10d value as well as the failure rates of the other components.
Service life graph
The service life graphs indicate the number of cycles from which failures due to wear must
be expected. The wear is mainly caused by the electrical load; the mechanical load is negli-
gible.
Unit types with UB 24 VAC/DC
} U
B
: 24 VAC/DC; Order no. 777305, 787305
Cycles x 1000
Switching current (A)
Fig.: Service life graphs at 24 V DC and 230 V AC